Main Paper:

1- tishreen87.R analyzes data from Tishreen between 1987 and 2002 (Figure 1) and runs the regressions for table 2
2- tm.R conducts the STM and saves it. Note that it loads thawrah.RData, which contains the stemmed articles. 
3- topic_tables.R Analyzes the topics from the STM and makes the tables with the top terms and sample titles
4- figures.R Figures showing rise and decline of topics over time 
5- revolution.R runs the regressions that show change in topic coverage around the Syrian revolution

Appendix:
1- appendix_tm_robust.R conducts STM with various numbers of topics
2- appendix_k20.R - appendix_k50.R analyze each topic model (Appendix C)
3- appendix_revolution_no_covars.R: Replicates the tables in the paper about the change in topic prevalence following the revolution but using the topic model with n = 40 with no covariates and includes fixed effects (Appendix D)
4- appendix_tishreen_dummies_permutation.R: Runs the table about peace talks with fixed effects and uses permutations to test the results (appendices F and G)
5- appendix_assad_pics.R: Examines relationship between coverage of Israel and photos of Assad in front pages on Tishreen (Appendix H)